NEW YORK (CNNMoney) — You can walk into a store in Colorado and legally buy marijuana, but you might get fired if you smoke it. A new Colorado state law went into effect January 1, permitting anyone 21 years of age or older to buy and consume limited amounts of marijuana in the state, despite the fact that marijuana is a controlled substance on the federal level. But the Colorado law states that businesses can still prohibit marijuana use. And…Read more